Visa & Entry Requirements for Koh Phangan
Getting to Koh Phangan means crossing Thailand's border before you ever see a ferry. For most visitors from Western countries the process is smooth and paperwork-light: land in Bangkok or Koh Samui, clear immigration, board the boat. But a few rules — passport validity above all — catch people out every season, and it's worth knowing the basics before you book.
Koh Phangan itself has no immigration checkpoint. Everything happens at your international port of entry. Once you step off the ferry at Thong Sala, you're already inside Thailand and the entry stamp in your passport is what governs how long you can stay.